How to increase my intercourse timing with my wife?

Frontload sex. Assuming that you want to have a child, you should have sex every other day and concentrate on doing this starting 5 days before expected ovulation, as 80% of pregnancies occur with this approach see the following for more details: http://www.Theturekclinic.Com/video-increasing-chances-conceiving.Html.
Ovulation kit. I assume that you are referring to timing intercourse to increase the chances of pregnancy. If that is what you meant then i suggest buying an ovulation kit. They are available at any pharmacy. They help you know when to have intercourse to increase the chances of pregnancy.